Alto_A200.2_Power_Amp_Service_Manual.pdf

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MODEL:
A200.2
www.altoproaudio.com
Version 1.0
CONTENT
1. Introduction.............................................................................................1
2. Specification............................................................................................2
3. Schematic Diagram................................................................................3
4. Wiring Diagram.......................................................................................9
5. Printed Circuit Board..........................................................................10
6. Exploded View & Mechanical Parts List.......................................14
7. Electrical Parts List.............................................................................17
1. Introduction
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1U 1/2 rack, stereo high power amplifier.
Fantastic audio quality even with extremely high volume levels.
Solid and durable, and can be mounted into a cabinet.
User-controllable clip limiter.
2×120Watts on 4Ohms (EIAJ)
Balanced XLR inputs and 1/4”TRS jack to ensure noiseless long wiring.
1/4” TRS jack connectors for output.
Front panel LED indicators for signal, limit and clip.
Accurate gain control.
Independent thermal overload protection on each channel automatically
protects amplifier and speakers.
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Single channel over-heat protection.
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2. Specification
MODEL
8 ohms per channel(EIAJ)
4 ohms per channel(EIAJ)
4 ohms per channel(RMS)
Controls
Input Sensitivity @4 ohms
Indicators (per channel)
A200.2 DRAGONFLY
20Hz 20KHz@0.1%THD, Stereo Mode
65W
120W
60W (at THD 1%)
FRONT: Power switch, CH1 & CH2 LEVEL knobs
-3dBu
REAR: CH1 & CH2 LIMITER
Power-On: Green LED
Clip: Red LED
Limit: Yellow LED
Signal: Green LED
Connectors of each channel
Power Supply
Dimension
Net Weight
Input: COMBO connector
Output: 1/4" TRS connector
190-240 Vac~50Hz / 95-120Vac~60Hz
310*208.5*44mm
3.6Kg
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3. Schematic Diagram
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